Hradišťany, Summit in North Bohemian region, Czech Republic.

Radelstein, known in Czech as Hradišťany, is a 753 m nefelinite and trachyte summit in the České středohoří, about 7 km southwest of Milešovka. Its flat top holds a several-hectare meadow ringed by a basalt rampart up to 2 m high, with steep slopes of mixed spruce, beech and maple below.

On the grassy summit plateau, traces of a prehistoric hillfort from the Knovíz culture (8th–6th century BC) are visible, enclosed by a double rampart of basalt stones up to two metres high. The name Hradišťany derives from the Czech hradiště, meaning hillfort, and the German Radelstein is derived from it. The summit meadow has been a nature reserve since 1952.

The Czech name Hradišťany comes from hradiště, meaning hillfort, while the German Radelstein derives from it. The flat summit plateau, the Radelsteinwiese, is ringed by a two-metre basalt rampart from the Knovíz culture hillfort of the 8th to 6th century BC.

A red-marked route from Kostomlaty pod Milešovkou to Třebívlice crosses the mountain, and a marked branch leads to the summit. Štěpánov, Červený Újezd and Třebívlice are convenient starting points. The dense forest on top leaves only a partial view north toward the Ore Mountains.

The dual naming convention of this geographical feature, Hradišťany and Radelstein, demonstrates the linguistic diversity preserved in Czech topographical records.